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Power


Monthly Issue | October 15, 2008

Sonar sensors

Hawk Measurement Systems has launched a new line of “fourth generation” sonar transducers designed for improved sensing of interface levels in clarifiers and thickeners. The new transducer designs include three…


Tight seal, easy retraction

An advanced seal technology for hydraulic bolt tensioners recently developed by UK-based Boltight Ltd. takes advantage of the latest composite materials to eliminate oil leakage while allowing the tensioning piston…


Flaw-finding family

GE Sensing & Inspection Technologies’ new family of ultrasonic flaw detectors incorporates conventional and phased array ultrasound technology in three upgradeable models: Phasor CV, Phasor 16/16 Weld, and Phasor XS.…


Data interface flaps

Enclosure manufacturer Rittal Corp.’s latest products are designed to be incorporated into electrical systems to help ensure safety against arc flash hazards. Data interface flaps, shown here, provide rapid system…


Double duty flowmeter

As fluid passes through Exact Flow’s new DX-DL dual-rotor turbine flowmeter, the dual rotors become hydraulically coupled due to their counter-rotation. Not only does this allow the rotors to overcome…


Computer simulation as a NOx reduction design tool

A utility evaluated various methods of obtaining a NOx reduction of at least 30%, as required by upcoming regulations for its boiler, which originally produced 0.54 lb of NOx/million Btu…


POWER digest (October 2008)

News items of interest to power industry professionals. EDF and CGNPG create joint venture for Taishan nukes. Électricité de France (EDF) and the China Guangdong Nuclear Power Group (CGNPG) on…


Scorching asphalt and solar power

Anyone who has walked barefoot across a parking lot on a summer afternoon knows that blacktop is exceptionally good at soaking up the sun’s warmth. Now, a research team at…


New workshop completes first overhaul

In early August, a special transport departed from Voith Siemens Hydro’s Heidenheim workshop bearing the company’s 300-ton, 300-MVA hydro motor-generator back to Schluchseewerk AG’s Wehr pumped-storage station in Germany’s Black…


U.S. sees 20% jump in planned geothermal

The U.S., which continues to lead the world in on-line geothermal energy capacity, saw a 20% jump in new power projects since January this year, a survey released by the…


World energy use to surge 50% between 2005 and 2030

Worldwide energy consumption is projected to grow 50% between 2005 and 2030, driven by robust economic growth and expanding populations in the world’s developing countries, the U.S. Energy Information Administration…


Chemical looping and coal

What does human metabolism have in common with coal combustion? Quite a bit, it turns out, say researchers at the National Energy Technology Laboratory (NETL) who are studying chemical looping…


Cooling water intake structure regulations

In the wake of a recent federal case, large power plants are off the hook for now as far as complying with the U.S. Environmental Protection Agency’s (EPA’s) 2004 rule…


Rope-a-dope politics

Republican presidential candidate John McCain made reference to the word “fight” 25 times during his September 4 nomination acceptance speech. While watching McCain’s histrionics, my mind wandered back to another…


Transmission: Lines that connect the renewable energy dots

The United States is used to transporting fuels to electric generation centers that are close to where the power supply is needed. We see trains carry coal by the carload…


Dubuque Generating Station, Dubuque, Iowa

Owner/Operator: Alliant Energy Top Plant: Alliant Energy’s Dubuque Generating Station is a fine example of why small doesn’t mean insignificant in the power generation industry. This winner of the EUCG Best Performer…


Boryeong Thermal Power Complex, Boryeong-Si, Chungcheongnam-do Province, South Korea

Owner/Operator: Korea Midland Power Co., Ltd. Top Plant: From tall skyscrapers and flashing neon signs to Buddhist temples and pagodas, South Korea is a mixture of the new and old Asia. Doing…


Map of Coal-fired Power Plants in the United States

Courtesy: Platts Data source: Platts Energy Advantage and POWERmap. All rights reserved.


Entergy’s “big catch”

Entergy christened its Performance Monitoring and Diagnostic Center several years ago to leverage the expertise of its most senior operators and technicians across the company’s entire fleet of plants. The…


Rawhide Energy Station, Fort Collins, Colorado

Owner/Operator: Platte River Power Authority Top Plant: The staff of the Rawhide Energy Station have been racking up operating stats and an environmental performance record that is the envy of other plant…


The return of compressed air energy storage

Faced with soaring energy prices, researchers and developers worldwide are giving compressed air energy storage (CAES)—a technology almost 50 years old—a dusting, a spit shine, and a new life. In…


TS Power Plant, Eureka County, Nevada

Owner: Newmont Mining Corp. Operator: DTE Energy Services Top Plant: Not all coal-fired power plants are constructed by investor-owned utilities or independent power producers selling to wholesale markets. When Newmont Mining Corp. recognized…


Repairing low-pressure rotors with cracked blade attachments

An increasing number of low-pressure steam turbines—especially at supercritical fossil units—have experienced stress corrosion cracking in the blade attachment region of their low-pressure rotors. Approaches to solving this problem range…


Finessing fuel fineness

Most of today’s operating coal plants began service at least a generation ago and were designed to burn eastern bituminous coal. A switch to Powder River Basin coal can stress…


Managing software life-cycle issues

Software ranges from shrink-wrapped products available “off the shelf” to custom corporate implementations of enterprise systems that require sessions with shrinks to keep everyone sane. Regardless of its complexity, every…


Bringing down the cost of SO2 and NOx removal

A twist on an old technique, flue gas recirculation, helps prevent slagging in the upper furnace and convective pass, according to pilot testing recently completed by APTECH CST and the…


Texas loses “food vs. fuel” biofuel feud

How often do you get a clash between two great Lone Star icons? Recently, Willie Nelson, the patron saint of Texas country music, and the Texas & Southwestern Cattle Raisers…


Hand-arm vibration gauge

No U.S. federal standards exist to limit worker exposure to hand-arm vibration (HAV), but the National Institute for Occupational Safety and Health suggests that high HAV acceleration levels (5-36 m/s2)…


J.K. Spruce Power Plant, Unit 1, San Antonio, Texas

Owner/Operator: CPS Energy CPS Energy’s J.K. Spruce Power Plant, Unit 1 was recently recognized by the EUCG Fossil Productivity Committee as the best performer in the large coal plant category over the…


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